AirTekk brings you the perfect balance between ride comfort, quality and cost with their Genesis Coupe air suspension struts & slim-line bags. If you currently have an air ride setup on your car and need to upgrade or are simply piecing together a packaging using various components, this is a great option to consider. There is no modification needed for installation such as welding, cutting, or custom fabrication. 100% bolt-on as far as the struts and bags are concerned. Includes full set of four. These kits are custom made. Please allow 2 - 3 weeks to be made. This listing is only for the bags / struts. In order to complete the air suspension setup, you will need to purchase an Air managment System which will include the Air tank, compressor, air lines and air controller. You can use Airlift Autopilot V2 or Accuair E-Level Management systems to complete your setup which you can find here: Accuair: http://gctuner.com/index.php?main_page=product_info&cPath=11_51&products_id=1266#.WWkJC4grKUk Airlift: http://gctuner.com/index.php?main_page=product_info&cPath=11_51&products_id=1924#.WWkJIYgrKUk